Ectocarpus sargassi D.A.Saunders

  • Filed As

    Ectocarpaceae
    Ectocarpus sargassi D.A.Saunders n. sp. ( isosyntype )

  • Collector(s)

    J. E. Tilden s.n., 20 May 1900

  • Location

    United States of America. Hawaii. Oahu, Waianae.

  • Habitat

    On leaves of Sargassum echinocarpum and S. cymosum. On leaves of Sargassum echinocarpum and S. cymosum.

  • Specimen Notes

    Mounted with 440 b (barcode 00922372).

  • Identifiers

    NY Barcode: 00922371

    Occurrence ID: 0c448365-f07e-44f9-83f2-b35ef20fec0f

  • Exsiccatae

    American Algae

    Exsiccatae Number: 440 a

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    Send comments on this specimen record

  • Region

    Oceania

  • Country

    United States of America

  • State/Province

    Hawaii

  • Locality

    Oahu, Waianae

  • Coordinates

    21.4408, -158.19

  • Coordinate Uncertainty (m)

    1721.57

  • Georeferencing Method

    Georeferencing Quick Reference Guide, Version 2012. Located coordinates of mdpt Waianae shore. Measured from coord. to farthest extent of the shore to find linear extent (1710 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

  • Geodetic Datum

    WGS84

  • Distribution

    Map all specimens of this taxon

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Josephine E. Tilden. American Algae.

440. Ectocarpus sargassi Saunders, n. sp.

Plant tufted, 5-12 mm. or more high, dark olive brown, bearing below a
few long, often secund branches; growth intercalary; branches and main
filament 13-20 mic. wide, but little narrowed upwards, not pilate; cells
near the growing area one-half to as long as the diameter, increasing
upwards to 3-8 times as long as the diameter; plurilocular sporangia
ovate, acuminate, 20-35 mic. wide, 55-65 mic. long; zoospores (mega-
spores) 6-7 mic. in diameter, sessile or borne on a 1-3 celled stalk 011 the
lower part of the main filaments or the branches.

a.	On leaves of Sargassum echinocarpum and S. cymosum.

Waianae, Oahu, Territory of Hawaii.

J. E. T. 20 My 1900.

b.	On Chnoospora fastigiata var. pacifica.

Waianae, Oahu, Territory of Hawaii.

J. E. T. 17 My 1900.

Det. De Alton Saunders.

This species is related to Ectocarpus padinse (Buffh.) Sauvageau, but
differs from it in being more branched and in the size and shape of the
plurilocular sporangia. Only one kind of sporangia are present, the
megasporangia of Sauvageau.

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NEW YORK BOTANICAL GARDEN

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TYPE OF:

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00922371

00922372